/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.servlet.admin;

import com.entities.Employee;
import com.sessionbeans.EmployeeFacadeLocal;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author msc
 */
public class OperationEmployee extends HttpServlet {

    @EJB
    private EmployeeFacadeLocal employeeFacade;

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            // Parameter from list of employee
            // Parameter to view detail
            String dt = request.getParameter("dt");
            String ed = request.getParameter("ed");
            String dl = request.getParameter("dl");

            if (dt != null) {                       // View detail
                Employee detailEmployee = null;
                for (Employee e : employeeFacade.findAll()) {
                    if (e.getEmployeeId().toString().equals(dt)) {
                        detailEmployee = e;
                    }
                }
                request.getSession().setAttribute("detailEmployee", detailEmployee);
                response.sendRedirect("admin/employeeManagement.jsp?nv=2");
            } else if (ed != null) {                // Edit Employee
                Employee editEmployee = null;
                for (Employee e : employeeFacade.findAll()) {
                    if (e.getEmployeeId().toString().equals(ed)) {
                        editEmployee = e;
                    }
                }
                request.getSession().setAttribute("editEmployee", editEmployee);
                response.sendRedirect("admin/employeeManagement.jsp?nv=3");
            } else if (dl != null) {                // Delete Employee
                Employee deleteEmployee = null;
                for (Employee e : employeeFacade.findAll()) {
                    if (e.getEmployeeId().toString().equals(dl)) {
                        deleteEmployee = e;
                    }
                }
                request.getSession().setAttribute("deleteEmployee", deleteEmployee);
                response.sendRedirect("admin/employeeManagement.jsp?nv=0");
            }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
